Is hip strength a risk factor for patellofemoral pain?
Musculoskeletal Wednesday by Lewis Ingram, BSc (Hons):
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Despite the high prevalence of patellofemoral pain (PFP) in both adolescent and adult populations, the long-term prognosis following conservative management is poor – with only one-third being pain-free 1-year after the initial diagnosis. Therefore, it is imperative to identify the modifiable risk factors associated with PFP in order to offset its burden.
There has been a recent shift in focus away from the knee proximally towards hip strength and function as a potential key factor behind the aetiology of PFP. This systematic review aimed to differentiate whether hip strength was a predisposing factor or a result of PFP.
There appeared to be little prospective evidence to suggest an association between isometric hip strength and risk of developing PFP. However, cross-sectional studies identified that males and females with PFP have lower levels of isometric hip strength compared with pain-free individuals.
Therefore, it appears that hip strength deficits are more likely the effect – not the cause – of patellofemoral pain (PFP). > From: Rathleff et al., Br J Sports Med (2014) (Epub ahead of print). All rights reserved to BMJ Publishing Group Ltd.
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